LazyObject

It's an object wrapper that forwards all calls to the reference target object. This object is not created until the first method dispatch.

Add this line to your application's Gemfile:

gem 'lazy_object'

And then execute:

$ bundle

Or install it yourself as:

$ gem install lazy_object

Pass a block to the initializer, which returns an instance of the target object. Lazy object forwards all method calls to the target. The block only gets called the first time a method is forwarded.

Example:

lazy = LazyObject.new { VeryExpensiveObject.new }
# At this point the VeryExpensiveObject hasn't been initialized yet.

# Initializes VeryExpensiveObject and calls 'get_expensive_results' on it, passing in foo and bar
lazy.get_expensive_results(foo, bar)

# You can pass in blocks to the target.
lazy.perform_operation do |foo, bar|
  foo + bar
end

1. Fork it ( https://github.com/[my-github-username]/lazy_object/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request
6. Make sure all the test pass and your changes have test coverage!